Michael Carrick will be left ruing one transfer decision he made after Sunderland vs Middlesbrough. It was, unfortunately, business as usual when Middlesbrough lost 1-0 to Sunderland on Saturday afternoon. Boro headed into the game at the Stadium of Light aiming to end an unwanted 18-year record vs Sunderland. The Teessiders smashed the Black Cats 4-0 when playing at their ground last season but had not beaten their local rivals two games in a row at the Stadium of Light since 2006. That unfortunate record is now set to continue for at least one more season after Chris Rigg scored the only goa…